Bottle closure



' 1,636,422 July 1927 w. G. LAIDLAW BOTTLE CLOSURE Filed 001;. 15, 1925 Patented July 19, 1927.

UNITED-STATES PATENT. OFFICE.

WALTER G. LAIDLAW, OF sYRACUsE, NEW YoRK, AssIGNoRTo KLEEN KAP CoRPoRA- TION, E SYRACUSE, NEW max, A CORPORATION OF NEW YoRK.

BOTTLE CLOSURE.

Application flledOctober 15, 1926. Serial-N0. 141,834.

7 This invention relates to improvements in bottle closures, and has for its object to provide a unitary disc-shaped closure, which is formed with a foldable tab for removing the disc from the bottle mouth without dan ger of destroying the said tab or distorting the closure. And a further object is to provide novel means controlled by the saidntab for extractingthe contentsrfrom the bottle 7 10 by the use of straws and the like, without disturbing or removing the closure.

I attain these objects by the meansset forth. in the detailed description which follows, and as illustrated by the accompany ing drawing, in which- A Figure 1 is abroken central vertical section, showing the closure applied to the mouth of a bottle, also showing by full and dotted lines the arrangement and operation of the closure-removing tab. Fig. 2 is a broken plan View ofaistrip of material from which the closures are cut; showing the strip operated upon for forming the tab. Fig. 3 is a top plan View of the closure; showing the tab and the corresponding portion of the disc reduced in thickness. Fig. 4 is an edge view of the closure when first stamped from the strip of material. Fig. 5 is an edge view, showing the closure bent for facilitating splitting and removing the top layer of the. tab. Fig. 6 is a broken edge view, showing the disc straightened and the tab and disc perforated. Fig. 7 is a similar view, showingthe tab'folded upon the recessed portion of the closure ready to be applied to a bottle.

In the drawing, 2 represents an ordinary milk bottle, having a neck 2, which is surrounded by a bead 3, the latter encircling theusual sunken mouth 4, whose bottom comprises an annular ledge 5, upon which the well-known disc closure, as6, rests for. sealing the bottle mouth.

My closure comprises a single disc-shaped part, preferably stamped out of a continuous strip, as 6', of card-board, pulp-board, or. the like, of suitable'thickness and stiffness, to properly close and seal the mouth 4. To afford convenient means for readily and quickly removing the disc 6, without injuring or distorting the disc, I provide an integral tab or ear, as 7, which preferably extends beyond the periphery of the disc, when the parts are first formed; the said tab also preferably being disposed at an angle to the of the disc. And Fig. 8 is a top plan View linear dimension of the strip 6, so as to fa I cilitate stamping the discs with as little waste of the material as possible. In forming the tab 7, the strip 6 is preferably passed between suitable feed rolls (not shown), to a certain position and stopped long enough for a die, or other instrument, preferably oval m shape (not shown) ,to cut through theweb of the strip, for forming the tab portion that extends beyond the periphery of the disc, and at the same time, the same die preferably cuts or scores the adjacent top' surface or portion of the disc, as at 7 (see'Fig. 2), to the ex-' tent of about one-half the thickness of the (not shown) carried by the machine, next peels'or shaves off the upper half of the tab and the correspondinglyshaped portion of the disc enclosed by the scoring 7 for forming a recess 6", after which the disc is restored to its plane state, as shown in Fig. 6. This reducing of the tab 7 renders it sufficiently pliable to be readily folded and unfolded during the operation of the closure. The next step in the manufacture of the. closure consists of punching a hole, as 6 (see Figs. 3, 6, 7 and 8) in the bottom of the re cess 6 and at the same time punching a narrow slot 7 at the base of the tab 7, forv dotted lines in Fig. 1. Where milk is dispensed at soda-fountains and the like, the

liquid contents may be sucked or drawn from the bottle 2, by means of a straw, which may be inserted in the perforation 6, after the tab hasbeen lifted Clear of the recess 6 in a well-known manner.

This provision obviates the danger of dirt orgterins entering the bottle either before or during the with drawing of the contents. The drawing ofi ot' the contents or the bottle by means of a straw may be'ettec" ed in one or in several operations, and in the intervals between said operations. the tab 7 may be depressed; for closing the recess and also the perioration 6, as shown in Figs. 1, '4 and 8-. providing the relatively thin tab 7, as herein shown, the tab may be readily folded upon the disc and titted snugly into the recess 6 where it wiil remain until lifted by ones finger nails, or by the use of any suitable instrument, and when the tab is lifted, as shown in. Fig; 1, a slight pull in the linear direction of the tab will readily unseat and lift the disc, without danger out tearing or otherwise injuring the tab. By providing the small slot 7 as herein she-win the tab may be folded upon the disc without danger of breaking the grain of the paper, and when the said slotis properly positioned, theperiphery of the disc at its intersection with the tab retains its normal curvature instead of being flattened at said point-1 as heretofore.

7 Having; thus described my invention, what I claim, is a 1% A. bottle closure comprising a' fibrous dial: having an integral radial tab projecting outwardly from its periphery, said tab being of reduced thickness relative to the thickness of the disk and the upper face of the latter adjacent the tab being formed with a depression, the upper face of the depression forming'a' continuation of the up o'er face' of the tab when the latter is extended, the tab being folded along a line substantially in register with the adjacent peripheral part of the disk and engaging in the depression so is to extend flush with the upper face of the c A bottle closure comprising a fibrous disk having an integral radial tab projecting outwardly firorn: its periphery, said tab being'ot reduced thickness relative to the thickness of: the disk' and the upper face of the latter adjacent. the tab being formed with a depression, the upper face oft-he depression forming a continuation of theupper face of the tab when the latter is extended, the tab being formed with a transverse slot; alined with the periphery of the disk and being folded along the slot and engaging in the depretasion so as to lie flush Withthe upper face of the disk, the bottom wallof the depression being formed: with an opening to enable the bottle contents to be removed withoutdisturbing, thediska i In: testimony whereof I aflix my signature.

WALTERG. LAIDLAW. 

